C1000-189 Dumps with Practice Exam Questions Answers

According to IBM Instana's integration documentation, webhook notifications support Basic Authentication by embedding the username and password into the URL as part of the standard format (https://user:password@hostname/path). The exact extract from IBM states: "For webhooks requiring basic authentication, username and password must be specified by prepending these values to the webhook hostname in the URL." This approach is supported by most HTTP libraries and ensures ease of integration with third-party endpoints. Instana also allows other advanced authentication mechanisms for webhooks, but this is the documented approach for standard Basic Auth scenarios. Additional header configuration (B) is possible but not required for basic authentication, and option D is incorrect as Basic Auth is explicitly supported (and documented). Limiting to only the Authorization header (C) oversimplifies the supported authentication workflows.

IBM Instana Observability agents useLog4j2as their primary logging framework for system activity, sensor status, and diagnostic output. The documentation confirms: "The default logging framework for Instana agents is Apache Log4j2, providing structured log output, multi-level verbosity, and integration with most enterprise log aggregation environments." Log4j2 is a standard for Java-based environments, supporting dynamic log rotation, filtering, and formatting. Instana agent log files follow Log4j2 conventions, enabling easy parsing by SIEM tools and adapters. Serilog (A) is a .NET framework, not used by Instana agents. JSNLog (C) is for JavaScript applications, while Loggly (D) is a SaaS log analytics platform. Log4j2’s mature design lets administrators tune performance, verbosity, and log destinations in rich deployment scenarios, directly aligning with best practices in Instana’s monitoring ecosystem. This was reconfirmed in agent reference guides and environment setup sections.

The IBM Instana Observability documentation clearly defines several operating modes for the host agent, with INFRASTRUCTURE mode dedicated exclusively to monitoring system-level performance data. The verified extract states: "INFRASTRUCTURE mode configures the host agent to monitor the underlying host metrics and activate sensors for the technologies running on that host without tracing application-level transactions." It collects CPU, memory, disk, network metrics, and technology integrations like Docker or OS sensors while ignoring application instrumentation. This mode reduces overhead in environments that demand system observability without full APM tracing. APM mode, conversely, extends to application traces and requests. Cloud-specific modes such as AWS or ARM designate external monitoring integrations rather than agent behavior. INFRASTRUCTURE mode thus provides base telemetry visibility as per documented design and was verified in both formulations of the Instana agent guides (v1.0.277, v1.0.307).

The Instana Operator is the officially recommended and supported method for deploying the Instana host agent on Kubernetes clusters. The IBM Instana Observability documentation states, "The recommended method to install the Instana agent on Kubernetes clusters is via the Instana Operator, which uses Custom Resources to simplify lifecycle management." The Operator pattern in Kubernetes automates not just installation, but also upgrades, configuration, and management of agents across the entire cluster. This ensures security and reliability because the Operator reacts to cluster changes and can self-heal agent deployments. Other install options such as Homebrew, direct binary, or RPM are for traditional VM or bare-metal hosts—not for orchestrated container environments like Kubernetes. Only with the Operator does Instana support automated scaling, configuration through CRDs, and native Kubernetes best practices. Helm charts are also often involved in configuring the Operator, further streamlining agents’ deployment in public, private, or hybrid cloud clusters.

According to IBM Instana Observability documentation, the Infrastructure map’s primary goal is to present a real-time, interactive graphical overview of monitored hosts, nodes, VMs, and cloud instances, organized by zones or clusters. The verified statement is: "The Infrastructure map provides a dynamic, interactive view of all monitored systems—grouping resources by logical or physical zones and delivering actionable context for troubleshooting and planning." Users can zoom, filter, and select entities to drill into system health and configuration, identify relationships, and pinpoint issues in geographic or topological layouts. Static images are not produced; instead, the map updates in real-time as agents detect new hosts, containers, or state changes, reflecting additions, removals, or migrations instantly. Option D describes the Service map, which visualizes application and service dependencies rather than the underlying infrastructure. Thus, C best matches the IBM documented description for Infrastructure map functionality.